The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2001
Filed:
Feb. 14, 1997
Applicant:
Inventors:
Judith Lynne Kerschner, Fair Lawn, NJ (US);
Sharon Harriott Jureller, Haworth, NJ (US);
John Socrates Thomaides, Berkeley Heights, NJ (US);
Robert William Humphreys, Annandale, NJ (US);
Carmine Phillip Iovine, Bridgewater, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/03 ; C08J 3/05 ; C09D / ; C09D / ;
U.S. Cl.
CPC ...
C08J 3/03 ; C08J 3/05 ; C09D / ; C09D / ;
Abstract
A polyurethane polymer and method of preparing it is described. The process requires the combination of a soluble polyol with a di- or polyisocyanate under densified fluid conditions. The process to prepare a waterborne polyurethane involves the utilization of a polyol containing ionic or latent ionic groups which must undergo preneutralization before combining with the di- or polyisocyanate under densified fluid conditions. The resulting polyurethane is substantially free of an organic solvent.